caa a22 4500 397496818 CHVBK 20180308164523.0 cr unu---uuuuu 161202e199504 xx s 000 0 eng 10.1016/S1010-7940(05)80144-7 doi (NATIONALLICENCE)oxford-10.1016/S1010-7940(05)80144-7 Arteriosclerotic histologic evaluation of the internal mammary artery in patients undergoing coronary artery bypass grafting [Elektronische Daten] During 1991, 52 patients undergoing myocardial revascularization had abiopsy of the distal internal left mammary artery (IMA) taken. There were48 male and 4 female patients with a medium age of 58 years.Arteriosclerotic involvement of the IMA was assessed according to the scaleof Kay. Using this index, grade 0 corresponds to a normal artery withoutatherosclerosis, grade 1 represents minimal disease, grade 2 a narrowing ofless than 25% of the lumen, grade 3 narrowing between 25 and 50%, and grade4 narrowing of 50% or greater of the lumen. Of the 52 IMA examined, thearteries with degree 0, 1, 2, 3, and 4 were: 19 (36.5%), 20 (38.4%), 9(17.6%), 4 (7.6%) and zero. Thirty-three arteries (63.4%) had some degreeof atherosclerosis. Considering the arteries with some atheroscleroticnarrowing, 13 (25%) of the whole group had this pathological alteration.The IMA has a low but consistent incidence of arteriosclerosis involvement.Preoperative angiographic investigation of the IMA could be routinelyperformed. © Springer-Verlag 1995 European Journal of Cardio-Thoracic Surgery Elsevier Science B.V. 9/4(1995-04), 198-201 1010-7940 9:4<198 1995 9 ejcts https://doi.org/10.1016/S1010-7940(05)80144-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1016/S1010-7940(05)80144-7 text/html Onlinezugriff via DOI NATIONALLICENCE 773 0- European Journal of Cardio-Thoracic Surgery Elsevier Science B.V 9/4(1995-04), 198-201 1010-7940 9:4<198 1995 9 ejcts Metadata rights reserved CC BY-NC-4.0 http://creativecommons.org/licenses/by-nc/4.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-oxford